Maybe I'm just glad I saved myself $100 by being able to solder that most tedious pin connection to an ultra-micron pigtail so short you couldn't see it. Being able to use only one hand instead of the two I needed to get the other hand to line up my tweeter properly, more than a few times I run into situations like this where I need three hands and the mechanical mount easy not working I know this gun works perfectly, amazing, heats up very quickly, I've had a quick look at the internal mechanics, and it's not that complicated to be sensitive, it's pretty simple, great design, seems being made of ABS plastic, from the wheel mount to the solder outlet to the tip It's a perfectly smooth transaction, well, the thin flex cable (2 prong) is a thumbs up and uses regular 900M universal grommets. Even if you only use it once, you can't go wrong with this device (as I just demonstrated). I've been using it a lot for a month and nothing has changed even using the original tip that came in the kit. Everyone needs one of these, just in case